JPS6090765A - Bubble collector for ink jet head - Google Patents
Bubble collector for ink jet headInfo
- Publication number
- JPS6090765A JPS6090765A JP19964683A JP19964683A JPS6090765A JP S6090765 A JPS6090765 A JP S6090765A JP 19964683 A JP19964683 A JP 19964683A JP 19964683 A JP19964683 A JP 19964683A JP S6090765 A JPS6090765 A JP S6090765A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- ink
- air bubbles
- head
- supply tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/19—Ink jet characterised by ink handling for removing air bubbles
Landscapes
- Ink Jet (AREA)
Abstract
Description
【発明の詳細な説明】
く技術分野〉
本発明はインクジェットプリンタに係わり、詳しくは、
ヘッドへの気泡侵入を防止する機構に関するものである
。[Detailed Description of the Invention] Technical Field> The present invention relates to an inkjet printer.
This invention relates to a mechanism that prevents air bubbles from entering the head.
〈従来技術〉
従来のこの種の装置は第5図のように、圧力室12を有
するヘッド1に供給管5が継がっており、ヘッド1の入
口にフィルタ11を付けて気泡を除去するという構造が
採られていた。この構造ではフィルタの目をいくら細か
くしても気体の粒子の方が小さい為、気泡が通り抜けて
しまいインクが射出しなくなるという問題点があった。<Prior art> As shown in FIG. 5, a conventional device of this type has a head 1 having a pressure chamber 12 connected to a supply pipe 5, and a filter 11 attached to the inlet of the head 1 to remove air bubbles. structure was adopted. This structure had the problem that no matter how fine the filter mesh was, the gas particles were smaller, so air bubbles would pass through and the ink would no longer be ejected.
〈目 的〉
この発明は、供給管内に生じた気泡がヘッドに入らぬよ
うにすることを目的とする。<Purpose> The purpose of the present invention is to prevent air bubbles generated in the supply pipe from entering the head.
この発明は2対の電極を持っており、一方はヘッド入口
に接続された供給管に取付けたイオン化電極である。こ
れはインク内に発生した気泡をイオン化させる為の電極
である。他方は供給管とは別の方向に取付けられた気泡
溜を設けて、この気泡溜に取付けた捕集電極である。こ
の電極はイオン化した気泡を集めるものである。The invention has two pairs of electrodes, one an ionizing electrode attached to a supply tube connected to the head inlet. This is an electrode for ionizing bubbles generated within the ink. The other is a collection electrode that is provided with a bubble reservoir attached in a direction different from the supply pipe and attached to this bubble reservoir. This electrode collects ionized air bubbles.
この発明を図面にもとずいて説明すると、第1図におい
て、イオン化電極4がインクをヘッド1に導く供給管5
の内側にインクに直接液するように取付けられ、捕集電
極2が気泡溜乙の外側に取付け(又は蒸着)しである。To explain this invention based on the drawings, in FIG.
The collecting electrode 2 is attached (or deposited) on the outside of the bubble reservoir.
供給管5はイオン化電極4部分で断面積を小としである
。これによりi!電極間距離が縮まり、且つこの部分の
圧力が高くなる。イオン化′WL極4には高周波、高電
圧が加えられ、捕集電極には直流電圧が印加されている
。The supply pipe 5 has a small cross-sectional area at the ionization electrode 4 portion. This allows i! The distance between the electrodes decreases, and the pressure in this area increases. A high frequency and a high voltage are applied to the ionization WL pole 4, and a DC voltage is applied to the collection electrode.
以上の状況で気泡は、供給管のイオン化電極部で小さく
なり、高周波、高電圧によりイオン化して正イオン・負
イオンの2つに分かれ、捕集電極の電界により引き寄せ
られて集泡される。In the above situation, the bubbles become small at the ionization electrode part of the supply pipe, are ionized by high frequency and high voltage, and are separated into positive and negative ions, which are attracted and collected by the electric field of the collection electrode.
第2図は第1図のA −A’間で切断した断面図である
。FIG. 2 is a sectional view taken along line A-A' in FIG.
第3図及び第4図は、第1図のA −A’断面における
他の実施例を示すもので、第3図は電極51・32を平
行に幾つか並べて設けてあり、第4図は電極41を供給
管の円周内側に、電極42を供給管の中心に設けた0こ
のことにより電極間の距離を縮めイオン化し易くなる。3 and 4 show other embodiments taken along the A-A' cross section of FIG. 1. In FIG. 3, several electrodes 51 and 32 are arranged in parallel, and in FIG. The electrode 41 is provided inside the circumference of the supply tube, and the electrode 42 is provided at the center of the supply tube.This reduces the distance between the electrodes and facilitates ionization.
捕集電極も第6図、第4図の実施例と同様のものが考え
られる。The collection electrode may also be similar to the embodiments shown in FIGS. 6 and 4.
以上説明したように1本発明はへノド1の入口に接続さ
れた供給管に気泡をイオン化させるイオン化電極と、こ
の気泡を集める捕集1!極を設けることKより、ヘッド
への気泡侵入を阻止し、安定シタヘッドの動作を得るこ
とができる。As explained above, the present invention includes an ionization electrode that ionizes air bubbles in a supply pipe connected to the inlet of the henodor 1, and a collection 1 that collects the air bubbles. By providing the poles, air bubbles can be prevented from entering the head, and stable head operation can be obtained.
第1図は本発明のインクジェット・ヘッドの集泡装置の
縦断面図、第2図は第1図のA −A’間の横断面図、
第3図、第4図は他の実施例の横断面図、第5図は従来
の装置の縦断面図である。
1・・圧力室を有するヘッド
2・・・捕集電極
3・・・気泡溜
4.31 .32,41 .42・・・イオン化電極5
・・・供給管
12・・・ピエゾ他を用いてインクに圧力を加える圧力
室
第3図
第4図
第5図FIG. 1 is a longitudinal cross-sectional view of a bubble collecting device for an inkjet head of the present invention, and FIG. 2 is a cross-sectional view taken along line A-A' in FIG.
3 and 4 are cross-sectional views of other embodiments, and FIG. 5 is a vertical cross-sectional view of a conventional device. 1...Head having a pressure chamber 2...Collecting electrode 3...Bubble reservoir 4.31. 32,41. 42...Ionization electrode 5
... Supply pipe 12 ... Pressure chamber that applies pressure to ink using a piezo etc. Fig. 3 Fig. 4 Fig. 5
Claims (1)
印字するごときインクジェット・ヘッドに於いて、イン
クジェット・ヘッドにインクを供給する供給管に接続さ
れた気泡溜と、供給管に取付けられたイオン化電極と、
気泡溜に取付けられた捕集電極とを備え、イオン化した
気泡を気泡溜に集泡したことを特徴とするインクジェッ
ト・ヘッドの集泡装置。In an inkjet head that has a pressure chamber that applies pressure to the ink and prints by ejecting ink, there is a bubble reservoir connected to the supply pipe that supplies ink to the inkjet head, and a bubble reservoir that is attached to the supply pipe. an ionization electrode;
A bubble collection device for an inkjet head, comprising a collection electrode attached to a bubble reservoir, and collecting ionized bubbles in the bubble reservoir.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19964683A JPS6090765A (en) | 1983-10-25 | 1983-10-25 | Bubble collector for ink jet head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19964683A JPS6090765A (en) | 1983-10-25 | 1983-10-25 | Bubble collector for ink jet head |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6090765A true JPS6090765A (en) | 1985-05-21 |
Family
ID=16411310
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19964683A Pending JPS6090765A (en) | 1983-10-25 | 1983-10-25 | Bubble collector for ink jet head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6090765A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8100520B2 (en) * | 2006-02-14 | 2012-01-24 | Samsung Electronics Co., Ltd. | Inkjet printhead and method of removing bubbles in the same |
-
1983
- 1983-10-25 JP JP19964683A patent/JPS6090765A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8100520B2 (en) * | 2006-02-14 | 2012-01-24 | Samsung Electronics Co., Ltd. | Inkjet printhead and method of removing bubbles in the same |
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